Prada Bonnie Calfskin Leather Shoulder Bag — Black. Composition: 100% Calf Leather Bos Taurus. Exterior material: Calfskin Leather. Size: Medium. Measurements: 32 × 15.5 × 12 cm (12.6″ × 6.1″ × 4.7″). Strap: Shoulder Strap. Handle: Double Top Handle. Closure: Zip. Carry: Shoulder. Adjustable strap. Detachable strap.